Roofing



Feb' 22 1927 l G. P. HEPPEs ROOFING Filed May 17, 192s Patented Feb. 22,

y UNITED STATES lii'llisz'la'll oFFic-E.-

GEORGE r. Barras, or cmoaeo This Ainvention relates to 4roofing, more iparticularly to that type'whi'ch is shipped in rolls and laid inslightly overlapping courses 'on the roof. With roofing of thischaracter partially embedded in its face as it comes` from the asphaltor other compound coating mechanism vwhile it is still warm and tacky.This granular-surface is too rou h to form a good cement bond. with theun er surface of the overlying sheet and it is therefore desirable toomit this surfacing at the upper' 'margin of each sheet whereitunderlies the sheet next above so that a better bonding surface isproduced.

This invention relates to a method and machine for treating this marginby which the surfacin material will not adhere thereto during t emanufacture of the sheet, this being accomplished by chilling thatportion of.

the sheet Which-it 1s desired to leave unsurfaced so that the asphalt isset suliciently to prevent adherence of the surfacing material at thatportion only by the time it is applied thereto, the remainder of thesheet being in 'roper condition to take the surfacing.

or a more complete understanding of this invention reference may be hadto the accompanying drawings in which- Figure 1 is a somewhatdiagrammatic plan of a. portion of the roofing machine illustrating theinvention.

Figure v2 is a central longitudinal section of the same machine.

Referring to these figures, at l is indicated a roll of rag lfelt whichis saturated and coated lwith asphalt, a tank 2 being shown throughwhichthe web passes and wherein the coating operation, and, if desired, thesaturating operation also may be performed. The particular method andapparatus by which the material is saturated and coated is immaterial tothis invention and it has therefore'been illustrated onlyconventionally. The coated sheet as it leaves the tank 2 is still Warmand tacky and in driving mechanism A3 sufiicientl -8 .may be positionedwithin the chamber 5 HEIGHTS, ILLINOIS, ASSIGNORjTO- THE FLINTKOTECOMPANY, OF BOSTON, MASSACHUSETTS, A CORPORATION 0F' MASSACHUSETTS.

QROQFING- appiiaon mea nay 17, 192s. semaine. ssaesa condition toreceive the'surfacing material,

-a hopper for containing this material and from which it may be fed atroper rate to the sheet as it is fed there enea-th by feed rolls beingindicated `at 3. 'Before the coated sheet reaches the hopper it is actedupon by a cooling device indicated at 4 by which a asphalt in strip fo mis. caused to congeal Y or set before the sheet reaches the surfacing 6oto, prevent the" granular material stic 'ng thereto. shown this 'coolingdevice 4 isv positioned centrally of a comparatively wide s'heetit beingdesi through this strip as shown byV the ldotted line 15 in Figure 1.-If .it is not desired to split the sheet the mechanism may bepositioned to act on one margin of the sheet only.- The coolingmechanism, as shown, comprises an expansion chamber 5 having an openlower end 6 of a width corresponding to the Width of the strip desiredto be left unsurfaced and of any length proper to 'cause the material tobe treated a suiicient length of time tol insure sufficient con'--gealing of the coating asphalt.l Compressed air may be supplied to theinterior of this casing through a pipe 7 and as shown abaiile againstwhich the blast of air from the pipe 7 may impinge in order to preventthe airv from striking thesurface of the sheet with` sufiicient force todisplace the coating asphalt thereon. The chamber 5 is shown as of4considerable volume in order that lthe compressed air from the pipe 7may be expanded'and thereby ver considerably cooled, and the opening att e lower end is of sufficient size so that the air issues therefrom ata comparatively slow rate insufficient to cause any displacement of thesurface asphalt. .The asphalt along a strip is thus congealed as thesheet passes beneath this chamber, so that as the surfacing material isapplied thereto it does .not adhere to this strip portion but adheres tothe remainder of the sheet. The sheet may then be passed about a roll`10 so that the non- 'adherent surfacing may drop of andl be 100 ortion'ofthey coating gnedv that thel sheet be l split 65 conveyed away asbymeans of a trough' 11, andthe sheet may then pass about a roller 12 e 7.io

cover this subject matter also'. The use of' air jets to displace theasphalt coatingwlnle `which engages the surfaced side of. the sheet andcauses the adherentsurfacing to become. partially embedded in thecoating. The

. sheet is thus surfaced except along the strip which it isdesiredshould v'remain unsurfaced.

While this invention has .been described more particularly `withreference to roll roofing material, it should be recognized that thesame method might be employed to vform ornamental designs in a strip orother form on roofing of ot er descriptions Where it is desired to applysurfacing to certain vportions only." Exce t fied, therefore the caims'are intended to it is warmandplastic, howeverrdoes not comewithinthe scopeof the prese-ntl inveni" `fined by the append Havingthusdescribed an embodiment of' this invention it should be evident to thosemargin to partially harden and then applying rough surfacing material tovthe .face of the sheetvvhile allbut the margin is sufliciently soft forsaid surfacinv' material to i adhere thereto. and then finishing. thesheet.

2. The method of making rough surfaced roofing which comprises coatingsheet mate# rial with a hot molten compound, cooling said compound alonga strip lengthwise'of the sheet to cause,- it to partially harden,applying rough surfacing material to the face of the sheet While all butsaid strip is rial to adhere thereto, pressing the adherent`sufliciently soft for said surfacing ,matesurfacing partially into saidcoating, and then cutting the sheet through said strip to form a pair ofsheets each having a margin free. from said surfacin material.

3. The method of ma ring rough surfaced roofing which comprises coatingsheet material with hot molten material, blowing cold air thereagainstalong a determined path to cool and partially set the coating Withoutdeforming the same,.and then applying a rough surfacing 'material to thesurface of said sheet While said coating material is sufficiently Warmand tacky for said surfacing material to adhere thereto except on saidcooled path, and then completing the roofing.

4. The method of making rough surfaced rooting which comprises coatingsheet mateas otherwise speci- 'rial ivith hot molten material, .blowingcold airthereagainst along a determined path to'- cool and partially setthe coating, applying a l rough surfacing material to the surface ofsaid vsheet While said coating material issuf ficiently .warm andtackyfor said surfacing Amaterial to adhere thereto exceptjon said cooledath, and then completing the roofing.

roofing which gin -to cool and partially set the asphalt valong a striapplyin surfacin vmaterial to the surfacg of-said slieet'while figlieasphalt is stilllsuflici'ently Warm and tacky except along said. stripfor the surfacing to adhere, the asphalt along said lstrip heing'toocool to permit said surfacing to' adhereremoving' `the non-adherentsurfacing and then finishving the sheet.

6. The method of makinfr roofing which comprises coating a web of sheetmaterial with hot molten asphalt, directing cold air against'said coatedmaterial along the margin to cool and partially set the asphalt along' astrip without deformation of the coating, applying surfacing material tothe surface of said sheet While the asphalt is still sufficiently Warmand tacky except along said .strip for the surfacing to adhere, the.asphalt along said strip being too cool to )emit said surfacing toadhere, and then .finishing the sheet..

7. A machine vof the class described comprising -means for'coating sheetmaterial with-a heated molten compound, means to sheet' material feedthe sheet, means to direct cold air to a portion-of the. surface of saidsheet to cool and partially set the compound along a strip as it is fed,and means for applying a surfacing to the coated material While it issuliiciently warm and tacky to cause said surfacing to adhere exceptalong said strip.

8. A machine of the class described comprising means for coating sheetmaterial with a heated molten compound, means to feed the sheetprogressively, means to direct a gentle draft of l cold air ofinsuflicient force to cause deformation of the coating to a portion ofthe surface of said sheet to cool and partially set the compound along astrip as it is fed, and means for applying a surfacing to the coatedmaterial While it is sufliover desire' areas to cool and set the' molten5 material,` and means for applying a. surfac ing while theremaining'areas are suicientlyl warm and tacky for the surfx'wing toadhere s Ithereto, the cooled areas being set sucientlyfto preventadherence ofthe surfacing thereto.

-In testimony whereofvv I have aixed I ny signature.

. GEORGE P. HEPPES.

